10181240_2510 N. LARCHMONT - Plan (2)

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Installation Manual: MEMC Silvantis 60 cell PV Modules 9 of 15 WARNING: It is not recommended to mix connectors from different suppliers within the same string. This includes connections at the inverter, combiner boxes, and modules. Always wire modules so that proper polarity is maintained. Avoid placing excessive tension on the cables: There is no limit to the maximum number of series stringsthatcan be combined in parallel. However, when doing so, each string must include overcurrent protection with a maximum rating of 15A. MEMC recommends fhe useof DC rated fuses or overcurrent protection devices-with the appropriate maximum voltage rating. Do notconnect modules directlytoa parallel bus. The cross-sectional area of cable and the connectortype must be selected to align with the overall system design and should include the maximum shortcircuit currentof the system, maximum operating temperatures, and cable run lengths. Forfield connections, use ata minimum #12 AWG/4 mm21 wires insulated fora minimum of,85°C. Use copper wire only. 5.3 GROUNDING The moduleframe includesiseveral labeled grounding holes. These holes maynot be used for any other purpose. MEMC recommends a Burndy BGBL-4 AL lay-in lug for grounding. Only Negative grounding circuits (negative polarity to ground).shall be used within the array design. Attach the grounding lug to the frame as follows: _ Step 1.: Use stainless,steel hardware. Step 2: Place the grounding lug overthe grounding hole on the exteriorof the module frame. Step 3: Place a star washerdirectly between the bottom of the grounding lugand the exteriorsurface of the frame. Step 4: Placean M*or#8-32 boltthrough the lug, star washerand framegrounding hole. Step 5: Securethe lug to;the frame using a flat washer, split washerand M4 or#8-32 nut. Step 6: Torque the bolt stack to approximately 1.5 N.m (or 1.1 foot pounds) toensure the star washerscratchesthe anodized frame. © Copyright 2012 MEMC Electronic Material 4 ,